TROCHOIDAL TEETH GAS COMPRESSOR

PROBLEM TO BE SOLVED: To provide a trochoidal teeth gas compressor which can be operated for a long period with high compressing efficiency by installing a sliding contact part for pressing and holding a pair of rotors which rotate for preventing the leakage of the compressed gas in a compressor, under a proper pressure, providing one of the sliding parts with a fixed contact part, providing the other slide contact part with a sliding member which is slidable in an axial direction with the proper backing pressure, and a pressing mechanism, and further installing an automatic lubricating oil circulating mechanism. SOLUTION: A trochoidal teeth gas compressor comprises a frame 10, a fixed side bracket 11 including a fixed contact part 11a, an intake hole 13 and a discharge hole 14, a pair of rotors comprising an outer rotor 15 and an inner rotor 16, a movable contact part 20, and a driving shaft 17. The outer rotor 15 which is rotatable and slidable in an axial direction, is engaged with a play in a rotor chamber 10a of the frame 10, and a shaft center of the outer rotor 15 and a shaft center of the inner rotor 16 are inscribed in a condition that they are eccentric by e, so that they are rotated slidably in an axial direction by the driving shaft 17.